The FG4S-1200G-90G-NG is another encoder that has reached end-of-life status and is no longer available for purchase in the market. For operators with equipment still dependent on this model, finding a replacement can be extremely difficult. To solve this challenge, we offer 1:1 customized alternatives built to match the original encoder’s parameters precisely. Customers benefit from seamless installation without redesigning or altering their machinery. Furthermore, our efficient production process enables us to deliver replacements within 15 working days, giving businesses a faster way to restore operations and overcome procurement obstacles.
Historically, the FG4S-1200G-90G-NG played an important role in the metallurgical and steel industries. It was designed to operate in demanding environments, where reliability under heavy mechanical load and harsh conditions was essential. Known for its stable incremental output, it provided precise feedback for controlling speed and position in rolling systems, drives, and automation applications. Even though it is discontinued, many industrial facilities still require this model to maintain continuous production. Our customized replacement ensures long-term operational security by replicating the performance of the original product.
Replacement solution reference image.
Technical Datasheet
Pulse rates
| Category | Valeur |
|---|---|
| Standard pulse rates | 500, 600, 1000, 1024, 1200, 2000, 2048, 2400, 2500 |
| Special pulse rates | 4000, 4096, 4800, 5000, 8192, 10000, 12000, 16000, 16384, 20000, 25000(further pulse rates according to customers specification) |
Connection data
| Paramètres | Détails |
|---|---|
| Supply voltage | 12 V … 30 V DCFor UL and CSA Class 2 supplied |
| No load-current | approx. 50 mA at 24 V |
| Outputs | Current limited, short-circuit proof push-pull line driver with integrated impedance adaptation for 30 to 140 Ω lines. |
| Pulse height (HTL) | approx. as supply voltage, output saturation voltage < 0.4 V at Iₗ 30 mA |
| Output current | max. 150 mA at 24 V (observe derating) |
| Internal resistance | 75 Ω bei 24 V |
| Slew rate | 200 V / μs with Cₗ 100 pF |
| Duty cycle | 1:1 ± 3 % for standard pulse rates1:1 ± 5 % for special pulse rates up to 25000 pulses |
| Square wave displacement 0°, 90° | 90° ± 3 % for standard pulse rates90° ± 5 % for special pulse rates up to 25000 pulses |
| Max. frequency | 200 kHz, Higher max. frequency on request |
Special output voltage 5V (TTL)
| Paramètres | Détails |
|---|---|
| Pulse height | 5V, RS422-compatible (TIA/EIA - Standard) |
| Supply voltage | 12 … 30 V DC (optional: 5 V DC)For UL and CSA Class 2 supplied |
